Hamel Husain
Machine learning engineer and independent AI consultant. He writes about LLM evaluation, tooling and applied ML at hamel.dev, and previously worked on machine learning at GitHub.
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Where they publish
hamel.devSite His blog: posts on LLM evaluation, AI tooling and applied machine learning.
Recent
- AI Product Engineering Notes 12 Aug 2026
- “It’s Hard to Eval” Is a Product Smell 29 Jun 2026
- The Revenge of the Data Scientist 26 Mar 2026
Show 10 more
- Evals Skills for Coding Agents 2 Mar 2026
- Why I Stopped Using nbdev 18 Jan 2026
- Selecting The Right AI Evals Tool 1 Oct 2025
- AI Evals: Everything You Need to Know 28 May 2025
- A Field Guide to Rapidly Improving AI Products 24 Mar 2025
- Building an Audience Through Technical Writing: Strategies and Mistakes 30 Nov 2024
- Using LLM-as-a-Judge For Evaluation: A Complete Guide 29 Oct 2024
- An Open Course on LLMs, Led by Practitioners 29 Jul 2024
- Debugging AI With Adversarial Validation 12 Apr 2024
- Your AI Product Needs Evals 29 Mar 2024
Link verified 4 Sept 2026. Recent items update automatically from the channel.
@HamelHusainx.com Day-to-day posting about LLM evals and tooling.
Recent
- I love how Teresa is merging product discovery with evals. I think its a powerful combination! I started learning about product discovery b/c of Teresa and I t… 4 Sept 2026
- The suggested prompt to remove slop is itself, pure slop If it works fine, but feels funny to me ngl 2 Sept 2026
- I guess we are back to magic phrases again for prompting Re: “mannered prose” 2 Sept 2026
Show 3 more
- It's fun posting about evals b/c I can reply like this to bots 31 Aug 2026
- Curious why machine learning is not applied to the X timeline more? If somebody is replying once a minute for 8 hours they should be flagged. When I look at re… 31 Aug 2026
- Teaching is hard but worth it when you see this 🥰 @sh_reya and I are refreshing the material once again to incorporate the latest eval techniques in our next… 30 Aug 2026
Link verified 4 Sept 2026. Recent items update automatically from the channel.
github.com/hamelsmuGitHub His code, including work on nbdev and fastpages.
Recent
- evals-skills — Skills for AI Evals to compliment the course: AI Evals For Engineers & PMs 16 Aug 2026
- reverse-eng-site-skill — A reusable agent skill for discovering and validating website internal APIs through instrumented browser traffic and direct HTTP replay. 13 Jul 2026
- substack-stats — Interactive dashboard for public Substack newsletter revenue modeling 1 Jul 2026
Show 9 more
- stfu — Find the app or browser tab making noise and make it STFU. 11 May 2026
- website-to-api — Claude Code plugin for reverse-engineering website APIs using Chrome browser automation 11 Apr 2026
- hamelsmu — GitHub Profile README 27 Mar 2026
- claude-review-loop — Claude Code plugin: automated code review loop with Codex 15 Mar 2026
- hamelnb 9 Mar 2026
- research-council 27 Feb 2026
- design-research — Claude Code skill for comprehensive website design research using browser-automation agent teams 27 Feb 2026
- air-demo 12 Nov 2025
- text-editor-tutorial 31 Oct 2025
Link verified 4 Sept 2026. Recent items update automatically from the channel.
Recommends rcmnd
What they recommendrcmnd 5 things — each backed by an exact quote.
Compiled by rcmnd.app, not by them: the quotes are theirs, and each links to the post it was copied from.
Recent
Next.js Liked
I now use different languages for different tasks. For web development, I prefer the Next.js stack.
hamel.dev 2026-01-18
nbdev Mixed on
Because I have invested thousands of hours into nbdev, it's difficult to admit there are better tools for the outcomes I want.
hamel.dev 2026-01-18
their own
Claude Code Uses
My daily drivers now include Amp, Cursor, and Claude Code. I still enjoy notebooks, but only for data analysis, machine learning, or other exploratory workflows where the iterative, visual nature of notebooks shines.
hamel.dev 2026-01-18
Show 2 more
Cursor Uses
My daily drivers now include Amp, Cursor, and Claude Code. I still enjoy notebooks, but only for data analysis, machine learning, or other exploratory workflows where the iterative, visual nature of notebooks shines.
hamel.dev 2026-01-18
Amp Uses
My daily drivers now include Amp, Cursor, and Claude Code. I still enjoy notebooks, but only for data analysis, machine learning, or other exploratory workflows where the iterative, visual nature of notebooks shines.
hamel.dev 2026-01-18
Latest
Full feed →Everything, newest firstFeed Posts and repos from the cards above, in one stream.
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- I love how Teresa is merging product discovery with evals. I think its a powerful combination! I started learning about product discovery b/c of Teresa and I t… 4 Sept Quoting@ttorresAI evals have been the "it" skill for product teams for over a year. I've even called evals a new discovery habit. But I still meet product…
- The suggested prompt to remove slop is itself, pure slop If it works fine, but feels funny to me ngl 2 Sept
- I guess we are back to magic phrases again for prompting Re: “mannered prose” 2 Sept
- It's fun posting about evals b/c I can reply like this to bots 31 Aug
- Curious why machine learning is not applied to the X timeline more? If somebody is replying once a minute for 8 hours they should be flagged. When I look at re… 31 Aug Quoting@simonwQuestion for people who run autoreply bots here: are you not worried about the negative impact they have on your professional reputation? A…
- Teaching is hard but worth it when you see this 🥰 @sh_reya and I are refreshing the material once again to incorporate the latest eval techniques in our next… 30 Aug
Show 25 more
- evals-skills — Skills for AI Evals to compliment the course: AI Evals For Engineers & PMs 16 Aug
- AI Product Engineering Notes 12 Aug
- reverse-eng-site-skill — A reusable agent skill for discovering and validating website internal APIs through instrumented browser traffic and direct HTTP replay. 13 Jul
- substack-stats — Interactive dashboard for public Substack newsletter revenue modeling 1 Jul
- “It’s Hard to Eval” Is a Product Smell 29 Jun
- stfu — Find the app or browser tab making noise and make it STFU. 11 May
- website-to-api — Claude Code plugin for reverse-engineering website APIs using Chrome browser automation 11 Apr
- hamelsmu — GitHub Profile README 27 Mar
- The Revenge of the Data Scientist 26 Mar
- claude-review-loop — Claude Code plugin: automated code review loop with Codex 15 Mar
- hamelnb 9 Mar
- Evals Skills for Coding Agents 2 Mar
- research-council 27 Feb
- design-research — Claude Code skill for comprehensive website design research using browser-automation agent teams 27 Feb
- Why I Stopped Using nbdev 18 Jan
- air-demo 12 Nov 2025
- text-editor-tutorial 31 Oct 2025
- Selecting The Right AI Evals Tool 1 Oct 2025
- AI Evals: Everything You Need to Know 28 May 2025
- A Field Guide to Rapidly Improving AI Products 24 Mar 2025
- Building an Audience Through Technical Writing: Strategies and Mistakes 30 Nov 2024
- Using LLM-as-a-Judge For Evaluation: A Complete Guide 29 Oct 2024
- An Open Course on LLMs, Led by Practitioners 29 Jul 2024
- Debugging AI With Adversarial Validation 12 Apr 2024
- Your AI Product Needs Evals 29 Mar 2024